120421153 has 2 divisors, whose sum is σ = 120421154. Its totient is φ = 120421152.

The previous prime is 120421151. The next prime is 120421159. The reversal of 120421153 is 351124021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71098624 + 49322529 = 8432^2 + 7023^2 .

It is a cyclic number.

It is not a de Polignac number, because 120421153 - 2¹ = 120421151 is a prime.

Together with 120421151, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 120421153.

It is not a weakly prime, because it can be changed into another prime (120421151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60210576 + 60210577.

It is an arithmetic number, because the mean of its divisors is an integer number (60210577).

Almost surely, 2^120421153 is an apocalyptic number.

It is an amenable number.

120421153 is a deficient number, since it is larger than the sum of its proper divisors (1).

120421153 is an equidigital number, since it uses as much as digits as its factorization.

120421153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 120421153 is about 10973.6572299302. The cubic root of 120421153 is about 493.8187703602.

Adding to 120421153 its reverse (351124021), we get a palindrome (471545174).

The spelling of 120421153 in words is "one hundred twenty million, four hundred twenty-one thousand, one hundred fifty-three".